Hydraulic device for pumping and other purposes.



E. n oazms.

HYDRAULIC DEVICE FUR PUMPING AND OTHER PURPOSES;

Patgnted Sept 24, 1918.

APPLICATION FILED MAY 5. I915.-

I ,f an 2 MZW UNITED STATES PATENT OFFICE.

EUGENE ROBERTS, OF SALT LAKE CITY, UTAH, ASSIGrNOIEtv TO SUGAR CENTRI-EUGAL DISCHALBGER COMPANY OF SALT LAKE CITY, UTAH, A CORPORATION OF UTAH.

HYDRAULIC DEVICE FOR PUMPING AND OTHER PURPOSES.

To all whom it may concern:

Be it known that I, EUGENE ROBERTS,

citizen of the United States, and resident of Salt Lake City, Utah, have invented certain new and useful Improvements in Hydraulic Devices for Pump ng and other Purposes, ofwhich the following 1s a speclfication.

'This invention relates to hydraulic devices capable of use for pumping liquids and which are reversible inrespect to the power apphed so as to render them capableof use as water-driven motors.

The present invention consists essentially in-a hollowcasing in which is mounteda planetary arrangement of rotatable revolving vanes so related to the surrounding casing as to expel through a suitable outlet the Water which is admitted through an appropriate inlet passing around one side of the casing, the vanes being operatively controlled by suitable abutments or stationary I will be described in detail hereinafter and will be defined in the claims annexed hereto. In the accompanying drawings I have illustrated a simple and eflicient form embodying the in which: 7

Figure 1 is a vertical central section of the assembled device.

Fig. 2 is a horizontal section on the plane 2.2 of Fig.1.

Fig. 3 isa horizontal sectionon plane 33 of Fig. 1;

I have herein shown the apparatus designed to be operated as a pump through the agency of the driving pulley I) attached to the central shaft 7), to which central shaft is secured a revolving member or wheel 0 formed with a series of peripheral pockets or recesses 0', in each of which is mounted a rotatable shaft d parallel with the axis of rotation of the revolving member 0, around principles of this invention,

Specification of Letters Patent. Patented Sept. 24, 1918. Application filed May 5, 1915. Serial No. 25,949. i 7

which a series of shafts d are concentrically arranged.

These pockets are of approximately semicylindrical form and are slightly shorter than the axial depth or length of the revolx'in'g wheel or rotor so as to close the ends of said pockets, the opposite ends of the rotor form, as it were, heads closing the opposite ends of the pockets.

On eachhaft a? is secured a blade or vane at whose opposite sides are preferably curved to conform to the curvature of the circumference of the wheel or revolving member 0. The vanes are of a size to lie .wholly within their respective recesses when an outlet opening a surrounds the central revolving member. On one side for somewhat more than semi-circumference there is an annular clearance space between the peripheral wall of the casing and the periphery of the revolving wheel a and this forms the water or piston passage through which water flows from the inlet a to the outlet a On the opposite side between the inlet and the outlet passages, the wall of the casing is extended inwardly to the peripheral line of the revolving member 0, as indicated at a, so that the opposite sides of the casing are concentric with the axis of the wheel but are described on radii of unequal length.

The thickened portion a of the peripheral wall of the casing forms, so to speak, an abutment extending to the line of the revolving wheel to completely cut off the passage of water from the inlet to the outlet around this side of the wheel. The extremities of this abutment are suitably curved to form a cam surface which acts by contact with the successive vanes to turn the vanes into inoperative or feathered position while they are passing through this portion of their revolution. The cylindrical surface of the abutment a when the vane is formed and arranged to rest in close contact therewith, serves to keep the vane perfectl feathered during this part of its revo ution.

Both sides of the vanes are symmetrically curved with relation to their individual supporting shafts in order that the opposite sides of each vane may, on alternate revolutions of the rotor, form suitable contact with the correspondingly curved concave face of the abutment a To allow the escape of water from each successively passing recess or pocket c, the end shoulders of the abutment a are cut away for a portion of their depth, as indicated at a, so that the Water displaced from the pocket by the turning of the vane therein as the vane engages the shoulder may escape through this passage to the outlet of. Since the device is reversible, these passages 11* are provided at each end of the abutment.

While the vanes are turned into feathered position by contact with the side of the casing, as above described, other provision must be made for turning and maintaining them in their radial position while they are pass ing through the working portion of their revolution. To this end the shafts d are extended out through one of the heads of the revolving member or wheel 0 a sutlicient distance to receive a series of actuating buttons or cams (l which are secured to their outer ends and which are arranged to engage an inwardly projecting ledge or abutment a formed on the inside encircling cover section a of the casing. These buttons or cams d are similar .in contour or.

cross section to the vanes themselves and are secured to the vane shafts at substantially right angles to the vanes so that each cam button will be in feathered or circumferential position when the vane is in radial position, and will be in radial position when the vane is in circumferential or feathered position. The ledge or abutment forming the cam surface for operating and controlling the cams-(Z is located on the opposite side of the casing to the ledge or abutment a which acts directly upon the vanes, but,

of course, in an axially off-set plane to corres 0nd to the plane of the cams.

he upper section or cover a iis tightly bolted to the lower section so that it can be readily removed when desired.

The structure and operation are very simple. Each vane in its feathered position approaches the inlet opening a through the movement of the revolving wheel or spider 0. Immediately upon its approach, its radially extended button (I engages the adjacent shoulder of the ledge or abutment a so that the further revolution of the wheel turns the button in a contra-clock-wise direction into its circumferential position, and simultaneously through the connecting shaft 07, the vane is turned into radial position with its outer edge in contact with that portion of the peripheral wall of the casing" that bounds the annular water passage. As the blade is maintained in this radial posiface of the tion by its cam d in contact with the abutment or track a it pushes the column of water in front of it to the outlet opening 9 As the blade passes the outlet opening, its cam button loses contact with the cam surface or abutment a while the blade itself engages the adjacent shoulder or end of the ledge a and is turned to feathered position entlrely within its pocket, with its opposite or reverse side outward to contact with the concave face of the abutment a The individual rotative movement of each vane is always in a direction opposite to'the direction of rotation of the rotor itself, hence,

' this results in alternately exposing opposite sides and opposite ends of the individual vanes to contact for engagement with the surrounding wall of the casing and by distributing wear, prolongs the life of the parts;

No change in the structure of the device is needed to convert it into a motor or meter, since if the water under pressure enters t a it will force the successive blades or and the pulley b to any desired apparatus.

By reversing the flow of water, the wheel may be revolved in the opposite direction.

Itwill be seen that each blade or vane has a substantially planetary movement.

That is, it is revolved or carried-around the central axis bodily while it is rotated on its own individual axis by reason of the revolving motion, each complete revolution involving a half-rotation of the vane.

As the bearings in the two sections of the casing can be made perfectly water-tight, and as the joint between the two casings can also be made perfectly water-tight, it will be seen that the possibility ofleakage is reduced to a minimum, while the device has perfect accessibility, since the removal of the cover a allows all the vanes to be turned to feathered position to permit the revolving wheel, the vanes and-the shaft to be lifted axially entirely out of the casing.

In cases where large vanes or high pressures are used it may be advantageous to extend the vane or blade shafts d through both headsof the revolving member and provide both ends of the casing with removable cover sections a formed to engage cam buttons on both ends of each shaft in order to equalize and balance the torsional strains.

What I claim is:

1. A device of the class described embracing in its construction a central shaft. a rotatable drum secured thereto and provided with a series of peripherally arranged pockets, aseries of vanes pivotally mounted in said pockets, said vanes having their opposite sides symmetrical to their individual ing wall for a portion of the circumference is located at a distance from the periphery of said rotor to leave an annular clearance or piston chamber, the opposite portion of its Wall being located to form a close contact with the periphery of said rotor with its end portions forming an abutment or cam surface to engage the projecting ends of the.

successive blades to'cause them to fold within said drum, and means secured to the individual vane shafts for turning them again to extended position, substantially as described. 1

2. A device of the class describedembracing a. central rotary shaft, a: wheel secured thereto, a series of vanes concentrically arranged'around said wheel and pivotally mounted therein, a surrounding casing, a portion of whose circumferential wall forms a close contact with the periphery of the wheel, the opposite portion of said wall being concentric with the wheel but lying in a circle some distance beyond the periphcry of the wheel, and means for turning the individual vanes from circumferential to radial position and from radialto circumferential position at predetermined points in the revolution of thawheel, said means and the vanes co-acting with cylindrlcally curved portions of the surrounding casing to positively maintain the vanes alternately in radial and in circumferential positions, substantially as described. I

3. The combination of a hollow casing provided with inlet and outlet passages, a central revolving wheel, a series of se arate rotatable vanes arranged concentrica ly in said Wheel upon individual axes parallel with the wheel axis; a circumferential abutment or ledge located on one side of the casing between the inlet and the outlet passages to engage the successively approaching vanes and turn them to feathered position, and means for turning the vanes successively to radial position after they have passed by said abutment, substantially as described.

4. The combination of a central shaft a 1 revoluble wheel secured thereto and profrom circumferential vided with approximately semi-circular recesses in its peripheral portion, a casing surrounding said drum and having 1ts Interior encircling wall formed on cylindrical curves of different radii, the portion of the wall having the shorter radius of curvature lying vanes pivotally mounted in said recesses to have a rotating movement during the revolution of the wheel, and alternately moving position within their recesses to extended operative position in contact with the portion ofthe casing having the larger radius of curvature, cam like controlling members operatively connected with the respective vanes, an encircling casmg mcloslng said cam members havmg an in contact with the periphery of the Wheel,

with said axis, a series of vanes secured to said shafts to lie within the periphery of the wheel when turned to circumferential position and to extend radially beyond the Wheel when turned to working position, a series of cam buttons secured to said vane shafts, and means located inside of the circumferential in alternation each vane and its cam button in order to turn the vane alternately to circumferential and to radial relationship with the revolving whee-l, substantially as described. l

6. The combination of a hollow casing whose circumferential wall has opp0site in terior cylindrical faces described about unequal radii and .is provided with'inlet and outlet passages, said casing being open at one end, a removable cover section for closing the open end of said casing,.a revolving wheel centrally mounted in said casing, a series of vanes mounted on rotatable shafts with their opposite sides formed symmetrically to their shafts and extending axially of said wheel and arranged around and equidistant from said axis, a series of buttons secured to the projecting ends of said shafts in position to engage the inside face of'the cover for a portion of its circumfer-' of said casing, an annular abutment formed on the inside of the casing and of the cover respectively on opposite sides of'the center for engaging and rotating the vanes and the buttons in alternation, substantially as described.

8.- A device of the class described em-.

bracing in its construction a rotor mounted on a central shaft, a series of rotatable vanes mounted in peripheral .recemes formed wall of the casing to engage- Eig t.

in said rotor, a series of eam member's connected to and vanes b v (O-X1111 connecting means. a surrounding easing \vhose insidewall is formed to cooperatively engage said vanes and said cam members. respectively, to maintain an operative engagement with each cam member While its vane is in extendedor operative position and to alternateiy engage the vane and the cam member to impart rotating movementto the vane in a direction opposite to the direction of rotation of the rotor. substantially as deseribed.

In witness whereof, I have subscribed the above specification.

EUGEJE ROBERTS. 

